1131260323540 has 12 divisors (see below), whose sum is σ = 2375646679476. Its totient is φ = 452504129408.

The previous prime is 1131260323519. The next prime is 1131260323573. The reversal of 1131260323540 is 453230621311.

It can be written as a sum of positive squares in 2 ways, for example, as 812168649616 + 319091673924 = 901204^2 + 564882^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28281508069 + ... + 28281508108.

It is an arithmetic number, because the mean of its divisors is an integer number (197970556623).

Almost surely, 2^{1131260323540} is an apocalyptic number.

1131260323540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131260323540 is an abundant number, since it is smaller than the sum of its proper divisors (1244386355936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131260323540 is a wasteful number, since it uses less digits than its factorization.

1131260323540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56563016186 (or 56563016184 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 1131260323540 its reverse (453230621311), we get a palindrome (1584490944851).

The spelling of 1131260323540 in words is "one trillion, one hundred thirty-one billion, two hundred sixty million, three hundred twenty-three thousand, five hundred forty".